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- Email: info@nsjbio.com
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XRCC5 (X-ray Repair, Complementing Defective, In Chinese Hamster, 5), also known as Ku80 or Ku86, is a protein that in humans, is encoded by the XRCC5 gene. The XRCC5 gene encodes the 80-kD subunit of the Ku autoantigen, a heterodimer which contributes to genomic integrity through its ability to bind DNA double-strand breaks and facilitate repair by the nonhomologous end joining(NHEJ) pathway. Human colon cancer cells heterozygous for Ku80 are haploinsufficient with an increase in polyploid cells, a reduction in cell proliferation, elevated p53 levels, and a slight hypersensitivity to ionizing radiation. Functional inactivation of the second Ku80 allele results in cells with a drastically reduced doubling time. The locus is essential in human somatic tissue culture cells by experiments demonstration. A rare microsatellite polymorphism in the protein is associated with cancer in patients of varying radiosensitivity.
The stated application concentrations are suggested starting amounts. Titration of the Ku80 antibody may be required due to differences in protocols and secondary/substrate sensitivity.
An amino acid sequence from the C-terminus of human Ku80 (KFSEEQRFNNFLKAL) was used as the immunogen for this Ku80 antibody.
After reconstitution, the Ku80 antibody can be stored for up to one month at 4oC. For long-term, aliquot and store at -20oC. Avoid repeated freezing and thawing.
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